~560 km
Expected lifespan, based on hand-researched wear data for this model.

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Professional and user reviews consistently note high-quality materials and a durable outsole. There are few reports of premature wear, and the shoe maintains its cushioning and structure over time. Some minor concerns exist about upper breathability affecting long-term comfort, but not structural integrity.
The On Cloudmonster is widely regarded as an excellent choice for daily training and recovery runs due to its high level of cushioning, unique ride, and comfort. Expert reviews highlight its max-cushion platform and soft Helion foam, making it ideal for easy and base-building miles. The shoe's durability and stability improvements in the latest version further support its use for longer efforts, though some experts note it lacks the ultra-plush feel of top-tier max-cushion shoes. Its moderate weight and rockered geometry allow for some pace pickup, but the shoe is generally too heavy and not responsive enough for tempo runs or racing, where lighter, more propulsive models are preferred. The Cloudmonster is not designed for trail running, lacking the necessary traction and protection for technical terrain. User and expert consensus consistently recommend it for daily and recovery runs, with some extending its use to long runs, especially for runners who prioritize comfort over speed.
Ideal for Best suited for intermediate to experienced runners who prioritize comfort and cushioning for daily training, long runs, or recovery days. Ideal for neutral runners with a midfoot or forefoot strike, and those seeking a stable, energetic shoe for high-mileage weeks rather than race-day speed.
The Cloudmonster stands out as On's first truly maximal, soft-cushioned shoe, with a rockered ride and plush feel. The fit is higher volume in the heel and midfoot, transitioning to a lower volume forefoot. Best for runners seeking a soft, bouncy ride with a secure but not restrictive fit; those with very wide feet or who prefer a very roomy toebox may want to try before buying or consider sizing up.
Sizing: Generally true to size for most runners; some with wider feet may find the forefoot slightly snug and may consider a half size up. Higher volume in heel and midfoot, lower volume in forefoot.
Daily Trainer shoes in NORMA's database last between 320 and 800 km across 694 models. At 560 km, the On Cloudmonster sits in the upper half of that range.
The On Cloudmonster stands out for its ultra-cushioned, lively ride that excels on long runs and daily training. Runners praise its blend of plush comfort and stability, though some wish for better breathability and a lower price. It’s a versatile choice for those seeking a soft, energetic trainer that can handle both easy miles and uptempo efforts.
Full specs, fit notes, and reviews on the On Cloudmonster wiki page.
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The On Cloudmonster lasts about 560 km, based on hand-researched wear data for this model. Your own mileage shifts with body weight, running surface, and how you use the shoe.
Start checking for wear around 336 km (60% of its lifespan). By 448 km the foam and outsole are usually noticeably degraded, and most runners retire the shoe between there and 560 km.
Daily Trainer shoes in NORMA's database range from 320 to 800 km across 694 models. At 560 km, the On Cloudmonster sits in the upper half of that range.
Often, yes. A pair with under 60% wear (roughly 336 km) still has real training life left. NORMA lists second-rotation running shoes with transparent, verified mileage so you know exactly how much life you're buying.